Figure 1: Infrared transmissibility curves
By the Brenna criteria of general arrangement and relative heights of peaks, there appears to be complete isomorphism between the targets, showing that one can indeed compare apples with oranges.
Saturday, December 29, 2007
Apples and Oranges
From a dubiously respected source, we find proof of the validity of the Visual Gestalt ("eyeballing") method of matching chromatograms.
By the Brenna criteria of general arrangement and relative heights of peaks, there appears to be complete isomorphism between the targets, showing that one can indeed compare apples with oranges.
By the Brenna criteria of general arrangement and relative heights of peaks, there appears to be complete isomorphism between the targets, showing that one can indeed compare apples with oranges.
Thanks a lot, TBV. I must now re-examine my entire life and everything I'd thought I'd believed.
ReplyDeleteLarry, TBV,
ReplyDeleteWhile the quantification of the "Granny Smith Apple and the Sunkist Orange" is visually similar, I find the identification portion of the comparing apples and oranges lacking in this example. Sunkist is a cooperative of orange growers and is not a variety of orange. Varieties of oranges include: Navel, Valencia and Blood oranges. This analogy may be very apropos to the missing Mass Spec data.
It is fun read.
--GMR
Wow, pictures can be so misleading!
ReplyDeleteHear (from another source) is an analysis for the mineral content of an apple and an orange compared.
www.nutritiondata.com/facts-C00001-01c20TB.html
Apple, raw, with skin (Includes USDA commodity food A343)
1 cup, quartered or chopped (125g)
Minerals:
Calcium 7.5 mg
Iron 0.1 mg 1%
Magnesium 6.3 mg
Phosphorus 13.8 mg
Potassium 134 mg
Sodium 1.3 mg 0%
Zinc 0.0 mg 0%
Copper 0.0 mg 2%
Manganese 0.0 mg
Selenium 0.0 mcg
Fluoride 4.1 mcg
www.nutritiondata.com/facts-C00001-01c20Vm.html
Orange, raw with peel
1 cup (170g)
Minerals: scaled to 125g(x.735):
Calcium 119 mg 87.47
Iron 1.4 mg 1.03
Magnesium 23.8 mg 17.49
Phosphorus 37.4 mg 38.14
Potassium 333 mg 244.76
Sodium 3.4 mg 2.50
Zinc 0.2 mg .15
Copper 0.1 mg .07
Manganese ~
Selenium 1.2 mcg .88
Fluoride ~
Thank God, I was about to launch into a huge Ali exclusive, until I actually read your link.
ReplyDeleteI can relax into my welcome ignorance comfort zone -- apart from ACDC screaming to me that they're back in black through the head-phones -- a life saver.
Thank god for ACDC. Thank god for rock ...
Incidentally, FTIR is Fourier Transform Infrared Spectroscopy.
ReplyDeleteAnd all TBV readers should know the difference between spectroscopy and chromatography by now. :)